diff --git a/pyproject.toml b/pyproject.toml
index 36b6ceec8..7c2190881 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,12 +45,12 @@ classifiers = [
 ]
 requires-python = ">=3.9"
 dependencies = [
-    "ortools==9.7.2996; python_version < '3.13'",
+    "ortools==9.7.2996; python_version < '3.12'",
     # ortools depends on pandas, but 9.7 does not specify it as dependency
-    "pandas>=2.0.3; python_version < '3.13'",
+    "pandas>=2.0.3; python_version < '3.12'",
     # ortools 9.7 requires protobuf<=6.31.1
-    "protobuf<=6.31.1 ; python_version < '3.13'",
-    "ortools==9.12.4544; python_version >= '3.13'",
+    "protobuf<=6.31.1 ; python_version < '3.12'",
+    "ortools==9.12.4544; python_version >= '3.12'",
     "sympy==1.14.0",
     "unicorn==2.1.4",
 ]
diff --git a/requirements.txt b/requirements.txt
index 9b057ac29..fe0021bf6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-ortools==9.7.2996 ; python_version < "3.13"
-ortools==9.12.4544 ; python_version >= "3.13"
+ortools==9.7.2996 ; python_version < "3.12"
+ortools==9.12.4544 ; python_version >= "3.12"
 # ortools 9.7 requires protobuf<=6.31.1
-protobuf<=6.31.1 ; python_version < "3.13"
+protobuf<=6.31.1 ; python_version < "3.12"
 # ortools depends on pandas, but 9.7 does not specify it as dependency
-pandas>=2.0.3 ; python_version < "3.13"
+pandas>=2.0.3 ; python_version < "3.12"
 sympy==1.14.0
 unicorn==2.1.4
 black